R. Roberti et al., Evaluation of biological seed treatment of wheat for the control of seed-borne Fusarium culmorum, Z PFLANZENK, 107(5), 2000, pp. 484-493
Citations number
26
Categorie Soggetti
Plant Sciences
Journal title
ZEITSCHRIFT FUR PFLANZENKRANKHEITEN UND PFLANZENSCHUTZ-JOURNAL OF PLANT DISEASES AND PROTECTION
A 2-year field study was conducted for two experiments to evaluate the effe
ctiveness of selected antagonists against Fusarium culmorum. Durum winter w
heat seeds 'Vitron', naturally infected by F. culmorum at the rare of 20 %,
were coated with conidial suspensions (1 x 10(8) conidia/ml) of five antag
onistic fungi: Trichoderma atroviride 312, T. longibrachiatum 9, T. harzian
um 144, Gliocladium roseum 11 and Penicillium frequentans and added to talc
um powder for the first experiment. For the second one, seeds were treated
with talcum + yeast (0.2 %) and G. roseum or T. harzianum. All biological t
reatments, compared to the infected control, gave a significant increase in
emergence, winter survival, number of heads and yield, and lower disease i
ncidence and severity in both experiments in both years. The addition of ye
ast slightly reduced the number of diseased plants. These results show that
F. culmorum infecting wheat can be partially controlled by biological seed
dressing treatments and even if chemicals (prochloraz + mancozeb, guazatin
e, tebuconazole + thiram) provide the best disease control, they do not ass
ure a complete absence of the disease at the end of the crop season.